A3935KLQ Allegro Microsystems Inc, A3935KLQ Datasheet - Page 3

• Manufacturer Part Number: A3935KLQ
• Description: IC CTRLR MOSFET 3PH 36-SOIC
• Manufacturer: Allegro Microsystems Inc

Specifications of A3935KLQ

• Applications: DC Motor Driver, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Voltage - Load: 7 V ~ 40 V
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 135°C
• Mounting Type: Surface Mount
• Package / Case: 36-QSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -

A3935
External +5V
VDD
ENABLE
FAULT
OVFLT
UVFLT
OVSET
VDSTH
VDD
AHI
ALO
BHI
BLO
CHI
CLO
VBAT
SA
SB
SC
VDRAIN
VREG Undervoltage
3-Phase Power MOSFET Controller for Automotive Applications
VBAT Undervoltage
VBAT Overvoltage
VDD Undervoltage
Thermal Shutdown
Short to Ground
Short to Battery
Drain-Source
Fault Monitor
Bridge Open
(blank)
OS
LSS
Control
Logic
BOOSTD
(off)
OS
Functional Block Diagram
VBAT
VREG
VDD
BOOSTS
REFi
REFv
Turn ON
Turn ON
Delay
Delay
VBOOST
CSOUT
Regulator
Low Drop
Linear
Out
Phase A
cs
High-Side
Low-Side
Driver
VREG
Driver
CA
GHA
SA
GLA
CSN
GND
VREG
LSS
CSP
C
BOOT
(KELVIN)
115 Northeast Cutoff, Box 15036
VDRAIN
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
R
S
VBAT
To P hase C
To P hase B
Dwg. FP-053
VIGN
Voltage
Supply
Motor
3